Re-examining generalized teleportation protocol

✍ Scribed by Yan Xia; Jie Song; He-Shan Song

• Book ID: 104073620
• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 138 KB
• Volume: 279
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2007.07.010

✦ Synopsis

We present an explicit generalized protocol for probabilistic teleportation of an arbitrary N-qubit GHZ entangled state via only one non-maximally two-qubit entangled state. Without entanglement concentration, using standard Bell-state measurement and classical communication one cannot teleport the state with unit fidelity and unit probability. We show that by properly choosing the measurement basis it is possible to achieve unity fidelity transfer of the state. Compared with Gordon et al 's protocol [G. Gordon, G. Rigolin, Phys. Rev. A 73 (2006) 042309], this protocol has the advantage of transmitting much less qubits and classical information for teleporting an arbitrary N-qubit GHZ state.